CONTENTS. 
VOLUME I, 1918. 
No. 1 .—January. 
Page 
Editorial: Scientific Publications of Government Departments . . .. 1 
Preliminary Note on the Tinctorial Properties of the Genus Coprosma (Family 
Rubiaceae). By B. C. Aston .. . . . . . . . . . . 3 
A New Fungus-gnat which fertilizes Corysanthes oblonga Hook. By D. Miller .. 4 
A Systematic Examination of the Refractory Clays of the Canterbury District, 
with Special Reference to their Use for Firebricks and Furnace-linings (Manu¬ 
script deposited in the Dominion Museum). By H. V. Rowe . . . . 4 
Records of New or Rare Fish from New Zealand Waters. By J. A. Thomson _ . . 5 
Is a Sardine Industry practicable in New Zealand ? By J. A. Thomson . . 7 
New Zealand’s Niagara. By C. A. Cotton .. .. . . .. 9 
Notes on the Geology and Mineral Occurrences of the Wakamarina Valley. By 
J. Henderson .. .. .. . . . . , . ..11 
Economic and Scientific Developments resulting from the Lake Coleridge Hydro¬ 
electric Power-supply. By L. Birks .. . . .. .. .. 16 
The Maori System of Measurement. By E. Best . . .. . . 26 
Commercial Uses of New Zealand Minerals (chiefly Non-metallic) and Rocks. 
By P. G. Morgan .. . . . . ... . . .. 32 
The Concentration of Ores by Flotation. By D. M. Deane . . .. 39 
Experiments on the Smelting of New Zealand Ironsand. By J. E. L. Cull . . 43 
The Economics of Electric-power Distribution. By E. Parry . . . . 49 
Notes on the Geology of the Waikato Valley near Maungatautari. By J. 
Henderson . . .. .. . . .. .. . . 56 
Reviews .. .. .. .. .. .. .. 60 
Recent Publications .. .. .. .. .. .. . . 62 
No. 2 .—March. 
Editorial: The Place of Science in Education .. .. .. 65 
The Food of British Wild Birds. By W. E. Collinge . . . . .. 67 
The Importance of Plant Ecology with regard to Agriculture. By L. Cockayne 70 
Estimation of Potassium in Agricultural Samples by Means of Perchloric Acid. 
By B. C. Aston .. .. .. .. .. .. 74 
Steel-casting Furnaces under New Zealand Conditions. By S. H. Jenkinson .. 77 
Shell-middens of the Wellington District. By E. Best .. .. . . 84 
The Manufacture of Carbide of Calcium in New Zealand. By E. Parry .. 91 
The Occasional Occurrence of Australian and South Sea Island Molluscs in New 
Zealand. By M. K. Mestayer . . . . .. . . 102 
